secondary recovery
短语词组
- secondary gas recovery 二次采气
- secondary y recovery 二次开采
- secondary thermal recovery 二次热采
- secondary thermal recovery mode 二次热采模式
- Secondary resources recovery 二次资源回收
- secondary oil recovery [油气]二次采油
- secondary production recovery 二次开采
- deepwater secondary -recovery projects 深水二次开采项目
- secondary recovery waterflood 二次开采注水 返回 secondary recovery